Paper bag.



No. 656,302. Patented Aug. 2|, I900.

' M. D. POLHEMUS.

PAPER BAG.

(Applicafion filed Feb. 6, 1900.)

(No Model.)

v f y j e 7 lvlllu m/l/illlrlidlwill|llnwxvl L J -.J T m j 6 WITNESSES m A TTORNEYJ MARTIN D. POLIIEMUS, OF DOBBS FERRY, NEIV YOR-K ji PAPERBAG.

SPECIFICATION forming part of Letters Patent No. 656,302, dated August 21, 1900.

Application filed February 6, 1900. Serial No. 4,172. (No model.)

To aZZ whom it may concern.-

Be it known that I, MARTIN D. PoLHEMUs, a citizen of the United States, residing at Dobbs Ferry, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Paper Bags, of which the following is a full and complete specification,'such as will enable those skilled in the art to which it appert-ains to make and use the same.

This invention relates to paper bags which are designed for use inthe wrapping of materials or substances in package form.

The object of my invention is to provide a simple and improved paper bag of this character which will provide a more elfective and complete top closure, which will also embody means for sealing said top-closure portions,

and which can be inexpensively manufactured and will be generally more convenient and efficient. I

In the accompanying drawings,forming part of this specification, in which like reference characters denote like parts in the several views, Figure 1 is a plan view showing the blank from which my improved paper bag is formed. Fig. 2 is a side View showing the bag as made up into the usual flat form in which it is ready for use. Fig. 3 is a perspective View of a package formed with the improved bag.

Referring to the drawings, A designates a body portion which is cut or formed from a paper sheet or blank and is in its general contour an area approximately rectangular. This body-sheet forms the general body of the bag in substantially the usual manner, it being provided near its bottom edge with a longitudinal crease-line, as at h, and the edge or portion, as at c,below said crease-line being adapted to be secured together by pasting or in any other suitable manner to form the closed bottom which is usual in bags of this character. Extending from the longitudinal lower-edge crease-line b to the top edge (Z of the body A are two parallel crease-lines c e, the portion of the sheet A between the creaselines, as represented at f, being adapted to form one of the front or rear sides or faces of the body of the bag. Outside the crease-lines c, respectively, in the end-wing portions of the body-sheet A are provided two parallel crease-lines extending from the longitudinal crease-line b to the top edge (Z, the outer one of said creaselines being represented at 9, while the inner one, which is located between said creaselines g and the crease-line e, is designated at h. The portion of the sheet A, as at 2', between the lineseand g is adapted to form the side faces of the body of the bag, and the assemblage of creases as involved at this portion enables the folding of the bag into the usual flat position, as represented in Fig. 2, in which such bags are packed and stored for use. The outer end portions 7c 7r; of the body-sheet A beyond the crease-lines g are adapted to form conjointly the front or rear side or face of the bag-body, their outer end edges Z being overlapped, as represented in Fig. 3, and secured together by pasting or otherwise in the usual manner.

My invention and improvements have particular relation to the closure portion of the bag,whicl 1 is comprised in the body-sheet A, and involves parts located at the upper part of the portion f. In thus producing the improved closure portion I provide slits in the upper part of the portion f, as at m m, which extend from the top edge d, ata point within the plane of the crease-line e, downwardly and outwardly, with their lower ends intersecting said crease-lines e at a point an appropriate distance below the top edge (1. Said slits m are preferably curved downwardly and outwardly in a segmental path, as herein illustrated. Just beneath the lower terminal ends of said slits mare provided reinforcingstrips N, which are secured by pasting or otherwise against the inner face of the bodysheet A and which are preferably of triangular form, as herein indicated, the purpose of these reinforces being to prevent tearing of the body-sheet A below the bottom terminals of the slits m in the operation of folding and using the bag.

The middle portion of the upper part of the portion f of the body-sheet A between the slits m forms a tongue 0, which is adapted to be folded over the top of the bag, as represented in Fig. 3, and sealed by any suitable adhesive substance to retain the top of the bag in closed condition. The top end of the portion 0 forms the sealing-lip proper, as at p, anch for purposes of sealin g the inner face ICO of said lip 11 may be provided with a suitable adhesive substance, as represented at q in Fig. 1, or such substance may be applied in the operation of folding and closing the top of the bag. The top part of the portion f, at each side of the central tongue 0 and between the slot m and the crease-line 6, forms inner sealing-flaps, as indicated at r *1", which flaps, in the operation of folding the top of the bag, are adapted to be turned down and sealed against the lower or base portion of the tongue 0 to form a tight closure between the folded top portion of the bag and said tongue 0, whereby the joint of the top opening at-the base of said tongue will be effectively sealed and closed and spilling of the contents thus prevented. For sealing purposes the outer face of the flaps or wings r r may be provided with a suitable adhesive substance, as represented at s, or such substance may be apskilled in the art to which it appertains.

When the bag is in the flat form illustrated in Fig. 2, it is simply necessary to spread or open the mouth at the top to fill the contents into the same, when by shaking down said contents the .lower portion of the bodyof the bag will assume the square contour illustrated in Fig. 3. It is then simply necessary to fold over and tuck in that portion of the top of the body which exists at the outside or beyond the flaps or wings r and which forms the front side k and the end sides i i, in which operation the sealing-flaps 1" may be turned downwardly, so that their outer faces can be sealed against the inner face of the base portion of the sealing-tongue 0, after which said sealing-tongue 0 may be turned forwardly and downwardly over the folded top of the bag, which folded top will then have the square contour, as illustrated in Fig. 3, and the lip 19 of the tongue may be sealed to elfectively close the top of the bag. It will be noted that when the bag is folded into the package form illustrated in Fig. 3 the front and side edges at the top are closed bythe folds, and the joint existing at the rear edge at the point where the tongue or flap 0 is extended from the portionfof the body, is also effectively closed by the contact of the sealingflaps 1' "r with the base portion of the tongue or flap o, and in this operation of folding and closing the top of the bag the reinforces N will effectively operate to prevent tearing of the body of the bag at the joint or crease line existing below the lower termini of the slits m.

Having fully described my invention, I claimas new and desire to secure by Letters Patent- 1. An improved bag of the class described composed of a blank having the top of one of its side portions provided with a tongue or flap adapted to be turned over the top of the folded blank in forming the bag, and with side flaps arranged at the sides of and independent of said tongue or flap and adapted to be folded downwardly with relation thereto and to be sealed thereto in closing the bag, and reinforcing-strips secured to the blank at the opposite sides and bottom of the tongue or flap, substantially as shown and described.

2. An improved paper bag of the class described, having the top part of one of its side portions provided with a tongue or flap adapted to be turned down over the top portion of the folded bag, said tongue or flap being centrally arranged, and with side flaps occupying a position at opposite sides of said main tongue or flap and connected with the body-sheet of the bag at their outer edges with respect to said main tongue or flap, substantially as and for the purpose set forth.

3. An improved paper bag of the class described, having the top part of one of its side portions provided with slits extending from the top edge downwardly'and outwardly to the side edges or edge crease-lines and dividing said top part into a central main tongue or flap and two side flaps the outer edges of which are connected with the body-sheet of the bag, substantially as set forth.

4. An improved paper bag of the class described, comprising the body-sheet forming the side portions and having one of said side portions provided with a tongue or flap adapted to fold down over the top of the folded bag and with flaps at opposite sides of said tongue, said side flaps being connected with the body-sheet at their outer portions and said intermediate main tongue or flap and side flaps being arranged to extend below the top edge of said body-sheet.

5. In an improved paper bag of the class de scribed, the combination, with the body-sheet forming the sides of the bag and havingthe top part of one of said side portions slitted to form a tongue or flap and flaps at the side of said main tongue or flap, of reinforces connected with the body-sheet at the lower terminus of the slit.

6. An improved paper bag of theclass described, having the top part of one of its side portions provided with a tongue or flap and with supplementary flaps arranged at the sides of said main tongue or flap and free therefrom and having their outer edges connected with the body-sheet of the bag, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses, this 5th day of February, 1900.

MARTIN D. POLHEMUS.

Witnesses:

F. A. STEWART, V. M. VOSLER. 

